My argument isn't that I have insider information or even any meaningful knowledge or experience with literally billion dollar acquisitions and investments. My argument is that you don't either, and almost no one does, and Elon doesn't really have a track record of making decisions that have no explanation behind them - even if that basis is sometimes ideological rather than profit maximizing (buying twitter).

Elon is problematic in many ways and despite the cool things his companies do, I think he is also causing harm. However, he is not an idiot, he is very business savvy, he does things for real reasons, and if you're going to speculate that he's being an idiot and making a stupid decision, then I think it needs an argument of substance that actually understands the factors at play in spending billions of dollars on buying a company. Which I don't think either of us are equipped to provide.

Saying "this doesn't make sense" is basically an admission that it isn't understood, rather than evidence that Elon is being an idiot.

It is fair, however, people who are too big too fail have a lot of leeway after their brain goes. I think it could be an explanation as well. But we indeed do not know; don't have nor want billions. People like that definitely live in another world.